From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F0BCBC433E0 for ; Sat, 4 Jul 2020 10:26:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CB25920870 for ; Sat, 4 Jul 2020 10:26:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="u895Asqn" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727877AbgGDKZ7 (ORCPT ); Sat, 4 Jul 2020 06:25:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57294 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727848AbgGDKZx (ORCPT ); Sat, 4 Jul 2020 06:25:53 -0400 Received: from mail-wm1-x344.google.com (mail-wm1-x344.google.com [IPv6:2a00:1450:4864:20::344]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5A407C08C5DF for ; Sat, 4 Jul 2020 03:25:53 -0700 (PDT) Received: by mail-wm1-x344.google.com with SMTP id j18so34247099wmi.3 for ; Sat, 04 Jul 2020 03:25:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=dEvAV3WC8gjOi8/db5UgonIFrnz7oP9M+fD1t4PD98A=; b=u895AsqnI++nW+ATsCD6BM53ooaKE7DfxiT5p2rrbYNdSijhTa2fQojXDTEIR7jYPF eDuyVN7haX4f7btL7FsYhYPvf+qtegwUjvvWWxU2a+3rlGHRajWGZnXWwldaiRQqcO/B 6cwLMKgC4aChrc/tG8Z2LdbCLvM1pN4OOfieirBaNfQULsq97lAy3uSGUYI0zExf/EMg /wEbPOoKEenrXogE201dj1V7BdCaolqxGGhSyJ1iuPRWAyWxco+8y7t9Zu17E/orMXei NVGn3grc7xb4aECQK6M7VAlQ2ylCejDxl//pNzxVP/BRXfjaXSD9afGlg/5+0dsGcO4q PdIA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=dEvAV3WC8gjOi8/db5UgonIFrnz7oP9M+fD1t4PD98A=; b=s9314iE/acGH1/hcprisnswBNFjnzJcwhTzg9oURCCWSwUjWDjcGPvD+L7bMjtLg/J 0McUXTfX+Bc1HkGZMwoUttVQ+gJVipe7uLZnELqmrkcsGe7zU0kXCAH2P4Y02vSNywmy +D3+cdjbUqYzp+hHBN8y3gJgdjHwKfo+YXxHZ3nlNTvzGZtXL5L3ZyProxh3g4M/RIc5 b5JyT+Wd9/gWFEQ3CnslM0krtXPsgtjbwX+UJK+UVOCq+8qvHGubDFp9cHk9Um8sr95S am2Wf5y76TwO7wngRfuOLluD1+9ugWbhbnuStsbsG8QiEdSzaKRfwiLFUyDdKF0gXPge g1Uw== X-Gm-Message-State: AOAM532UHpU6xDBNNmYLtM2EL72yaS2wFGUtPoB/O8ADtNRV5oONA7nq RDNhNpImeYR+W3OdUfx/DvA= X-Google-Smtp-Source: ABdhPJxPyjX8E1s13IMa5BpsRPWoAPS1pYxySTMxZT0pEmMWQ3CcE7UVh59cuHmumr5QkfbuhHRayw== X-Received: by 2002:a1c:18e:: with SMTP id 136mr10189686wmb.93.1593858352040; Sat, 04 Jul 2020 03:25:52 -0700 (PDT) Received: from clement-Latitude-7490.numericable.fr (213-245-241-245.rev.numericable.fr. [213.245.241.245]) by smtp.gmail.com with ESMTPSA id g14sm16421428wrm.93.2020.07.04.03.25.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 04 Jul 2020 03:25:51 -0700 (PDT) From: =?UTF-8?q?Cl=C3=A9ment=20P=C3=A9ron?= To: Rob Herring , Tomeu Vizoso , Steven Price , Alyssa Rosenzweig , Viresh Kumar , Nishanth Menon , Stephen Boyd , Maxime Ripard , Chen-Yu Tsai Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Cl=C3=A9ment=20P=C3=A9ron?= Subject: [PATCH v2 09/14] drm/panfrost: dynamically alloc regulators Date: Sat, 4 Jul 2020 12:25:30 +0200 Message-Id: <20200704102535.189647-10-peron.clem@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200704102535.189647-1-peron.clem@gmail.com> References: <20200704102535.189647-1-peron.clem@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We will later introduce regulators managed by OPP. Only alloc regulators when it's needed. This also help use to release the regulators only when they are allocated. Signed-off-by: Clément Péron Reviewed-by: Steven Price --- drivers/gpu/drm/panfrost/panfrost_device.c | 14 +++++++++----- drivers/gpu/drm/panfrost/panfrost_device.h | 3 +-- 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_device.c b/drivers/gpu/drm/panfrost/panfrost_device.c index 464da1646398..0b0fb45aee82 100644 --- a/drivers/gpu/drm/panfrost/panfrost_device.c +++ b/drivers/gpu/drm/panfrost/panfrost_device.c @@ -90,9 +90,11 @@ static int panfrost_regulator_init(struct panfrost_device *pfdev) { int ret, i; - if (WARN(pfdev->comp->num_supplies > ARRAY_SIZE(pfdev->regulators), - "Too many supplies in compatible structure.\n")) - return -EINVAL; + pfdev->regulators = devm_kcalloc(pfdev->dev, pfdev->comp->num_supplies, + sizeof(*pfdev->regulators), + GFP_KERNEL); + if (!pfdev->regulators) + return -ENOMEM; for (i = 0; i < pfdev->comp->num_supplies; i++) pfdev->regulators[i].supply = pfdev->comp->supply_names[i]; @@ -117,8 +119,10 @@ static int panfrost_regulator_init(struct panfrost_device *pfdev) static void panfrost_regulator_fini(struct panfrost_device *pfdev) { - regulator_bulk_disable(pfdev->comp->num_supplies, - pfdev->regulators); + if (!pfdev->regulators) + return; + + regulator_bulk_disable(pfdev->comp->num_supplies, pfdev->regulators); } static void panfrost_pm_domain_fini(struct panfrost_device *pfdev) diff --git a/drivers/gpu/drm/panfrost/panfrost_device.h b/drivers/gpu/drm/panfrost/panfrost_device.h index 2efa59c9d1c5..953f7536a773 100644 --- a/drivers/gpu/drm/panfrost/panfrost_device.h +++ b/drivers/gpu/drm/panfrost/panfrost_device.h @@ -22,7 +22,6 @@ struct panfrost_job; struct panfrost_perfcnt; #define NUM_JOB_SLOTS 3 -#define MAX_REGULATORS 2 #define MAX_PM_DOMAINS 3 struct panfrost_features { @@ -81,7 +80,7 @@ struct panfrost_device { void __iomem *iomem; struct clk *clock; struct clk *bus_clock; - struct regulator_bulk_data regulators[MAX_REGULATORS]; + struct regulator_bulk_data *regulators; struct reset_control *rstc; /* pm_domains for devices with more than one. */ struct device *pm_domain_devs[MAX_PM_DOMAINS]; -- 2.25.1